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How brain benefits from mentally stimulating activitie

Narrator:       This is Science Today. Mentally engaging activities, like reading and writing, are good for your mind; but new research suggests they're also good for your brain. A study by scientists at the University of California, Berkeley, reveals that people who participate in mentally stimulating activities throughout their lives have fewer deposits of amyloid plaques in their brains. These plaques are a hallmark of Alzheimer's disease.

Jagust:           This was a rather unexpected finding because most people would have thought that cognitive activity doesn't really affect the amyloid, it affects the response to the amyloid; but we found that it actually affects the amount of amyloid in the brain.

Narrator:       Study leader Dr. William Jagust says this is the first time cognitive activity level has been related to amyloid buildup.

Jagust:           This is making us think that the things that are good for your brain are not just good for general brain health but they're actually really good because they have a basic impact on the basic process of Alzheimer's disease.

Narrator:       For Science Today, I'm Larissa Branin.